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trivy

Runs Trivy vulnerability/misconfiguration scanner on container images, filesystems, or IaC configs. Returns structured vulnerability data with severity summary.

How to control trivy ↓

What trivy does on Http

AI agents invoke trivy to trigger actions in Http. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

High Risk

Why trivy needs a policy

This tool executes an external scanning program (Trivy) against specified targets. It reads/analyzes data but does so by running an external process whose scope and effects depend on the arguments provided. While primarily a read-oriented security scan, it executes an external binary against potentially sensitive targets (container images, filesystems, IaC configs).

From the tool's definition Runs Trivy vulnerability/misconfiguration scanner on container images, filesystems, or IaC configs

Documented attack patterns abuse exactly the kind of access trivy gives an agent:

How to control trivy

PolicyLayer is an MCP gateway — it sits between your AI agents and Http, and nothing reaches the server without passing your rules. This is the rule we recommend for trivy:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "trivy": {
      "limits": [
        {
          "counter": "trivy_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

trivy stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Http — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Related tools and policies

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Questions about trivy

What does the trivy tool do? +

Runs Trivy vulnerability/misconfiguration scanner on container images, filesystems, or IaC configs. Returns structured vulnerability data with severity summary. It is categorised as a Execute tool in the Http MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on trivy? +

Register the Http MCP server in PolicyLayer and add a rule for trivy: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Http. Nothing to install.

What risk level is trivy? +

trivy is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit trivy? +

Yes. Add a rate_limit block to the trivy rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block trivy completely? +

Set action: deny in the PolicyLayer policy for trivy. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides trivy? +

trivy is provided by the Http MCP server (@paretools/http). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Http tool call.

Start from Http, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

202 Http tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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